Casting apparatus



c 22, 1929. w, N, THQDE Y 1,732,246

v CASTING APPARATUS Filed May 115.l 1926 e Patented oa. 22, 192e lUNITED STA 'ras PATENT ori-*Ica Winmx NICHOLAS fr'rronr., or CHICAGO,I'LLrNoIs, AssIGNon "ro Wiesmann Enno- TBIG CMPANY, INCORPORATED, 0F NEWYORK Application nled Hay 13,

This invention relates to casting apparatus, and more particularly todie casting a-pparatus. v

The objects of this invention are to provide a' casting apparatus whichmay be expeditiously and effectively connected Awith and disconnectedvfrom a die or mold. v l In order to obtain these and other objects andin accordance with the general features of thevinvention, one embodimentthereof comprises a furnace or oven and a melting pot asi sociatedtherewith. A detachable connecting member having a communicatingpassageway is provided, which is designed to interconnect a chargingchamber of the melting pot and a l iixed'die or mold. This connectingmember is adapted to be wedged in operative position between and to makea wiping contact with the melting pot and the associated die or mold,thereby establishing'a communication between the melting pot and die.vvA vmechanism is also provided whereby the connecting member may beeffectively connected and dis connected.

These and other objects will be apparent from the following detaileddescription when considered in connection with the accompanying drawing,in which- Fig. 1 is a centralv fragmentary vertical section of a diecasting apparatus disclosing-one embodiment of the invention with theconnecting member thereof shown in its inoperative or disengagedposition, and

Fig. 2 is a fragmentary plan view of the l apparatus shown in Fig. 1. y

Referring now tothe drawings wherein like numerals designate similarparts throughout the figures, the im roved casting apparatus includes afurnace esignated generally by the numeral 10. This furnace10 and itsassociated parts are very similar in' construction and operatingcharacteristics to the structures disclosed and described in thecopending application of Fredericl Shields* Kochendorfer, Serial No.108,783, filed May 13, 1926, and comprises a cylindrical oven 11hingedly mounted at one point upon a suitablebase plate 12. Coil sprlngs13 encircling companion plungermembers 14 threaded into the base plate12 supply a resilient sun.

casrme urmros 1926. serial No. 168,811.

port for the oven 11 and permit it to experience `aswingmg movement`about its hinged mountlng 1n a manner and for a purpose later tobeexplained. The oven 11 is provided.

with a refractory'lining 16 and extending through the c lindricalsections of this lining 16 at spaced intervals is a plurality of heat-`ing elements or burners y17 which are suitably connectedwith a source ofgas supply (not shown) Mounted upon the base plate 12 and reachingupwardly therefrom into the oven 11 is a post 18 which servesas a propor support for a melting pot '19 whichis designed to be heated by flamesfrom the burners 17.

This meltin pot 19 which is marginally supported at t e upperend 0j therefractory wall 16 ofthe oven 11, is formed with a sup.

YORK, N. .Al CORPORATION 0F NEW throughthe conduit 26 and into thefilling e chamber 25. The-molten material from within the fillingchamber 25 will be free to fiow into the charging chamber 22 when aconnecting member or nozzle-28 assumes its inoperative or disengagedposition as shown 1nl Fig. 1.

The connecting member 28 is provided with an arcuate passageway 30 andis pivotally connected at its upper portion with 'one extremity of atoggle arm 31. The toggle' arm 31 is pivoted at its opposite extremityto a companlon toggle arm 32, which is in turn secured to atransverse-horizontal, rock shaft 33. Therock shaft 33 which extendsimmediately above `and transversely of the melt-ing pot 19 is rotatablymounted at its extremities in suitable fixed bearing members 34, and oneend of the rock shaft is provided with an actuating lever 36. When theactuating lever 36 assumes the position shown in Figs. 1 and 2, the kneeof the toggle arms 31 and 32 will be broken and the connecting member 28will consequently occupy its raised or inoperative osition as shown.Raising the actuating ever 36 causes the connecting member .28 to belowered with the result that a concave surface 37 at the outerend of theconnecting member 28 is carried into wiping engagement with a companionspherical surface. 38` ofy a suitable die 39 fixed in position upon adie support 40. Contemporaneously with the engagement of the abovementioned-surfaces, a convex surface 42 of the connecting member 28 islikewise carried into wipin engagement with a companion concave sur ace43 in the lbottom of the filling chamber 25.`- Thus when the toggle arms31 and 32 are in alignment, the connecting member 28 will be firmlywedged into position between the egress opening of the charging chamber22 and the inlet to the die 39, as shown-by the dotted lines (Fig. 1).'When the connecting member 28 is in this position the arcuate passage-Way 30 thereof serves to establish a communication between the chargingchamber 22 and the mold within the die 39. In this connecsurface 42 withthe concave surface 43 as above mentioned..

When the charging chamber 22'has been sufficiently charged with a supplyof molten materialz the connecting member 28 may be lowered 1nto itsoperative position by the actuation of the lever 36. It will be apparentthat a-certain `amount of molten materialV will be present within thefillingy chamber when the connecting member is being low ered to itsoperative position and by reason of the wiping'engagement made by theconnecting member within the filling chamber, molten material willbesqueezed from between the contacting surfaces so as lto make a verytight and firm connection. Subsequent to the lowering of the connectingmember 28, air pressure is supplied through the coupling 23 from asuitable source of air supply (no`t shown) and the molten material fromwithin the chamber 22 is forced through f the passageway of theconnecting member 28 and into the die 39. The air pressurei's thendiscontinued and the connecting member may again be raised to permit ofthe recharging of the chamber 22 and the replace-l ly be immersed.

In the operation of the casting apparatus the connecting member 28iselevated to its inoperative position 'and material to be cast is placedwithin the suppl chamber 21 of the melting pot 19 throng an opening 46provided lat the upper portion thereof. Burners 17 are ignited and asthe material within the suppl chamber becomes molten it will flow througthe conduit 26 into the filling chamber 25 and thence downwardly intothe charging chamber 22. The die 39 is properly positioned -uponthe-support and when the chamber 22 has been sufficiently charged theactuating lever 36 is raised upwardly t0 the connecting member 28. Theengaging surfaces 37 and 42 of the connecting member make a wipingcontact with the companion surface 38 of the die 39 and the surface43 ofthe meltin pot 19 and the connecting memberis thus rmly wedged intoposition therebetween. Air pressure-is then applied to the coupling 23and the charge of molten metal within the chamber 22 is forced into themold of the die 39. In this connection attention is directed to baffles44 formed upon a portion of the connectingr member positionedwithi'n thefilling chamber-25, and also abale 45 formed integral with the meltinpot within the filling cham- These ba es serve as an added safeguard torevent the scattering of molten material rom the filling chamber in theevent that the convex surface 42 does not make a perfect contact withits companion concave surface 43.

Although the invention asherein illustrated and described-isparticularly well adapted for use in connection with die castingapparatus, it should be understoodthat the novel features thereof arecapable of other applications and 4should be limited only by the scopeof the appended claims.

What is claimed is:

1. In a casting apparatus, means for retalning material to be cast,a'mold, a connecting member, and means attached to the member forcausing a wiping engagement of the member with the material retainingmeans to effect the interconnection of the material for causing a wipingengagement of the 'member with the material retaining means and the moldto establish an interconnection therebetween.

.. `3. In a casting apparatus, a substantially stationary means forretaining material to be cast, a mold, a connecting member, and meansfor causing a relative movement between the member and the materialretaining means to effect a wiplng engagement of the connecting memberwith the material retaining means and the mold.

4. In a casting apparatus, means for retaining material to be cast, amold, a connecting member, and means attached to the member for wedgingthe member between the retaining meansand the mold to a'ordcommunication betwen the mold and the retaining means.

5. In a casting apparatus, means for retaining material to be cast, amold, a connecting member, and means for wedging the member between andfor making a wiping enga ement `with the retaining means and the mol 6.In a casting apparatus, means for retaining material jto be cast, amold, a movable member for interconnecting the material retaining meansand the mold, and a .toggle mechanism attached to the member and adaptedto eil'ect the making and breakin of the interconnection of the movablemem r.

7. In a die casting apparatus, means for retaining a charge of materialto be cast a die, a connecting member, and means or causing the memberto engage with the die and the retaining means, said retaining meansbeing yieldingly responsive to the engaging action of the connectingmember.

8. In a die casting apparatus, means for retaining a charge of materialto be cast, a fixed die, a movable connecting member, and a tog- 13. Ina casting apparatus, a mold, a material supply means, means forretaining a vcharge of material to be cast as received from the supplymeans, and means for controlling Athe flow of the material to theretaining means and for connecting the mold with the gle mechanism forfcausing the member to make a wiping enga ement with and a wedginginterconnection material retaining means.

9. In a die casting apparatus, a ymaterial retaining means includingsupply and charging chambers, a die, a member for interconnecting thecharging chamber andthe die, and means for disconnecting the member fromthe'charging chamber to permit the rial roih the supply chamber.

10. In a casting apparatus, a mold, means vcharginfrchamber to becharged with matelfor holding a supply of the fmaterial -to beV cast,means stationary with respect to the supply means for retaining a chargeof the matelrial, and movable means for electing the charging of theretaining means and having a. assage for connecting the chargmg meanswlth the mold.

tween the die and the' 11. In a casting apparatus, a mold, meansforretaining a supply of'material to be east, integral means connectedtherewith for. retaimng a charge of the materlal, and means fordisconnecting the supply means from the means for retaining the chargeand interconnecting the mold therewith. 12. In a vcasting apparatus, amold, means for retaining a charge of material to be cast, a materialsupply means mounted thereon and having a passage connecting with theretamingmean's, andanv interconnecting means for connectin the retainingmeans and the mold osing the passagein the supply and for c means.

